For a lot of folks in the modern day, knitting is more a relaxing hobby than a household necessity. However, not too long ago, this needlecraft was a genuine -- and effective! -- tool for spies. In the first part of this two-part series, Ben, Noel and Max dive into the fascinating history of knitting as espionage.

CLASSIC: Idiomatic for the People II, Part II
38:46

Inventors Who Died Due To Their Own Inventions: The Irrational Death of Hippasus
34:48

The Spiritualism Movement Was Utterly Ridiculous, Part Two: Con Artists, Skeptics, and Ghosts
52:36